Question

Factor
1) (5a–3b)^2–25a^2
2) (−2a^2+3b)^2–4a^4
PLS Helppp

Answer 1

- 3b(10a - 3b)

Explanation:

Given

(5a - 3b)² - 25a² ← this is a difference of squares and factors in general as

a² - b² = (a - b)(a + b), thus

(5a - 3b)² - 25a²

= (5a - 3b)² - (5a)²

= (5a - 3b - 5a)(5a + 3b + 5a) ← simplify parenthesis

= - 3b(10a + 3b)